WAS CHARGED $718.00 FOR ITEM FREE SHIPPING, PRODUCT WILL NOT WORK XM RADIO MODULE MUST PURCHASE MORE ELECTRONIC ITEMS TO OPERATE, WAS TOLD EVERY THING WOULD PLUG IN FROM OLD SYSTEM NOT THE CASE...NOW REFUND AMOUNT IS ONLY $610.00 NOT INFORMED OF ANY RESHOCK CHARGE, WHY THE DIFFERENCE IN REFUND COMPARED TO COST PRICE? ORDER103-7283308-3193058 FROM HOOKED ON TRONICS...PLEASE REPLY TO [email protected] OR [email protected] thank you